Add BrightSurf on Google Email

Search results for “Physics”

1,000+ results for "Physics"

Team led by graduate student at PPPL produces unique simulation of magnetic reconnection

A team led by a Princeton University graduate student has developed a unique simulation of magnetic reconnection in space plasmas, which could lead to improved forecasts of space weather events. The new model approximates kinetic effects using fluid equations and agrees better with kinetic models than traditional simulations.

SourceDOE/Princeton Plasma Physics Laboratory·JournalPhysics of Plasmas·DateSep 8, 2017

Simulating splash at the microscopic level

Researchers used a lattice-Botzmann method to simulate the impact of microdroplets on dry surfaces, revealing distinct physics at the microscopic level. They found that droplet sizes in spray cooling are three orders of magnitude smaller than previously studied millimeter-size droplets, and that this affects their dynamics.

SourceAmerican Institute of Physics·JournalPhysics of Fluids·DateJul 11, 2017

Scientists perform first-principles simulation of transition of plasma edge to H-mode

Physicists at PPPL have simulated the spontaneous transition of turbulence at the plasma edge to H-mode using a first-principles-based model. The simulation reveals that both turbulence-generated and non-turbulent sheared flows contribute to the bifurcation, providing the physics-basis for successful tokamak operation.

SourceDOE/Princeton Plasma Physics Laboratory·JournalPhysical Review Letters·DateMay 18, 2017

How fluids flow through shale

Researchers used a coarse-grain approach to model the behavior of fluids in tiny pores within shale rock. The simulations incorporated high-resolution imagery of shale samples, allowing for better probing of the underlying physics. This new understanding could lead to more efficient oil and gas extraction methods.

SourceAmerican Institute of Physics·JournalPhysics of Fluids·DateMay 2, 2017

The physics of wealth inequality

A Duke University professor proposes that wealth inequality is governed by a physical law, where systems evolve to increase access to flow. This natural tendency governs the distribution of wealth in economies, with hierarchical movement leading to greater disparities.

SourceDuke University·JournalJournal of Applied Physics·DateMar 28, 2017

Physics, photosynthesis and solar cells

A team of researchers has developed a new type of quantum heat engine photocell that can regulate solar power conversion without active feedback or adaptive control mechanisms. This design is inspired by the natural regulation of energy flow in photosynthetic green plants, and could lead to more efficient and cost-effective solar cells.

SourceUniversity of California - Riverside·JournalNano Letters·DateNov 30, 2016

Even physicists are 'afraid' of mathematics

A new study published in New Journal of Physics found that physicists pay less attention to articles with dense mathematical details, indicating real and widespread barriers to scientific communication. The researchers suggest improving clearer presentation of technical work is key to bridging this gap.

SourceUniversity of Exeter·JournalNew Journal of Physics·DateNov 11, 2016

How we escaped from the Big Bang

Associate Professor Dr Joan Vaccaro's research resolves an anomaly in conventional physics by introducing 'T violation', forcing the universe and us into the future. This breakthrough reveals how time evolution and conservation laws emerged, allowing for aging and a flow of time.

Neutrinos, ever bizarre, enjoy the spotlight

Recent neutrino discoveries by T2K and NOvA experiments at Colorado State University provide evidence of oscillations between neutrinos and antineutrinos, violating a longstanding physics principle. The findings hint at the universe's matter-antimatter imbalance and offer opportunities to study the weak nuclear force.

Researchers find brain's 'physics engine'

A Johns Hopkins University cognitive scientist has discovered the brain's 'physics engine,' a set of regions involved in predicting physical outcomes, which is essential for survival. The findings suggest that the brain constantly runs physics simulations to prepare for action.

SourceJohns Hopkins University·JournalProceedings of the National Academy of Sciences·DateAug 8, 2016

Entanglement: Chaos

Researchers at UCSB have uncovered a link between classical chaos and quantum entanglement using controllable quantum systems. Their findings suggest that thermalization is the driving force behind both chaos and entanglement in quantum systems, with implications for quantum computing.

SourceUniversity of California - Santa Barbara·JournalNature Physics·DateJul 12, 2016